Electric switch.



ADDISON C'. PHILPOTT, OF BUCYRUS, OHIO.

ELECTRIC SWITCH.

Specification of Letters Patent.

Patented Mar. 28, 1916.

Application filed January 8, 1914. Serial No. 811,113.

To all whom it may concern: v

Be it known that I, ADDISON C. Pnr'nror'r, a citizen of the UnitedStates, residlng at -Bucyrus, Crawford county, and State of ple andeffective character for enabling a member to be alternately moved inopposite directions by successive energlzations of a magnet whereby, ifdesired, current may be directed alternately through different circuits,and specifically to provide mechanical means for so positioning theswitch moving means that the said opposite switch successive movementsof the switch member will be effected by the movement of the magnetarmature in one direction.

WVith these ends and others in view, my invention is embodiedinpreferable form in the device hereinafter described and illustrated inthe accompanying drawings.

In thesedrawings, Figure 1 is a front view in elevation of a switch andthe magnet showing the switch blade in contact with a fixed contactmember and showing the armature drawn down by the energization of themagnet; Fig. 2, a front View in elevation showing the switch blade incontact with the same fixed member as in Fig. 1, but showing the magnetdeenergized and with the blade moving member in position to shift theswitch blade in the opposite direction upon the reenergization of themagnet; Fig. 3, a view similar to Fig. 1, showing the switch bladeincontact with the right hand contact member and with the magnetenergized; Fig. 4, a front view in elevation showing the switch bladeinthe positionindi cated in Fig. 8, but withthe magnet deenergized andFig. 5, a vertical sectionat right angles to Fig.1.

Referring to the drawings, 1 is a magnet of the solenoid type having31.0018 or arma- .ture 2, to the upper end of which is pivoted an arm'3, which carries at its upper enda cross arm 4. The arms 3 and 4constitute a switch blade operating member and this member is capable ofa lateral swinging movement on the pivot connecting the same with thecore of the solenoid.

Mounted on a pivot pin 5, extending into is adapted to establish acircuit through either fixed contact member 7 or fixed contact member 8,the said switch blade being laterally shiftable from one contact memherto another to establish different circuits or to make and break onecircuit. The pivot pin 5 and the contact members 7 and 8 are adapted tobe connected by wires 9, 10 and ll-to a suitable source of electricalenergy. The pin 5 is spaced from the arm 3 and the pin and the contactmembers 7 and 8 are mounted upon a suitable support from which they areseparated by suitable insulating material. The switch blade is providedat its lower end with a tilting cross arm 12, which carries at each endthereof an outwardly projecting pin or stud 13. Such pins are made ofnon-conducting material. These pins are adapted to be engaged by notches1414 formed in the lower edge of the arm 4 of the switch blade actuatingmember and also by notches 15--15 provided in said armand extending moredeeply into the surface thereof then the notches 14.

The notches 14 constitute means of connec- 'tlon between the shiftingmember and the blade for moving said blade while the.

notches 15 constitute guiding and guarding recesses and serve to permitthe descent of the blade shifting member when carried downwardly bythemagnet core and to also prevent said member from being shifted laterallybeyond the said pins.

Connected to an arm 16 extending laterally from the vertical arm 3 ofthe switch blade operating member is a spiral spring 17, the other endof which is connected to a fixed support.- This spring serves as themeans for carrying the .switch blade operat- 1ng member into position toshift the switch blade in a direction opposite to that in which it hasbeen carried by the energization of the v solenoid. This member.performs its positioning function when the solenoid is deenergized.

. The operation of the device is as follows In Fig. l the solenoid hasbeen energized, the core pulled down and the switch actuating memberalso pulled down and it will be seen that as a result of this action,the left hand notch 14 of the switch blade operating member has engagedone of the pins 13 on the cross arm of the switch blade and has carriedsaid pin downwardly rocking the switch blade on its pivot, so as tocarry the latter into contact with the left hand ,contact member. Theother pin on the opposite end of the cross arm of the switch 1 blade hasbeen carried into engagement with. the deep. notch 15 at thecorresponding end of the operating member. The parts will remain in thisposition with a circuit established through the switch blade and theleft hand contact member until the solenoid is dener'gized. When thisaction takes place,

the spring'17 will carry the switch blade operating member, consistingof the arms 3 and 4 upwardly and such member in such upward movementwill assume the true vertical position and in moving to such positionthe right hand notch 14 on the upper arm 4 will be carried over intoalinement with and above the right hand pin 13 of the tilted arm of theswitch blade, said switch blade and its arm remaining in the positionshown in-Fig. 1. The position resulting from the action thus describedis indicated in Fig. 2 from which it will appear that the right handnotch 14: of the switch blade-operating member is in engagement with theright hand pin of the switch blade, ready to depress the right hand endof the switch blade cross bar when the operating member and the solenoidcore are again pulled downwardly J by the energization of the solenoid.Upon such reenergization of the solenoid, the operating member willaccordingly tilt the right hand of the cross bar of the switch, bladedownwardly, thus shifting the switch blade from the left hand contactmember over into engagement with the other member to establish a newcircuit or break the first circuit, and'the parts will assume theposition shown in Fig. 3 until the current throughthe solenoid isbroken, whereupon they will take the position shown in Fig. 4, owlng tothe retractive action of the spring, and will then be in position toeffect the reshifting to the arrangement in' Fig. 1. It will be seenbythis arrangement that the switch blade may be shifted in oppositedirections by suc cessive movements of the solenoid core in the 7 samedirection. and that this action is effected by mechanical meanssupplemental to the electrical operating means provided by the solenoid.:1

Having thus-described my invention, what Iclaim is: l

In an electric switch, in combination with a fixed contact member, aswinging pivoted blade, a solenoid, an armature, a swinging membermovable in a plane parallel to the plane of movement of said switchblade and,

pivoted to said armature below the pivot of said switch blade, saidtilting member hav ing a cross arm extending to each side of the pivotof said member and having two pin" engaging slots at each end of saidcross arm, one of said slots being deeper than the other, said switchblade having a cross arm ADDISON C. PHILPQTT. [1 s.] v

Witnesses:

A. C. RICE, H. P. DOOLI'ITLE.

